Lock



Aug. 9, 1949. TU 2,478,338

LOCK

Filed Sept. 23, 1946 Patented Aug. 9 1949 UNITED STATES PATENT OFFICELOCK Tryggve Bob Stue, Oslo, Norway Application September 23, 1946,Serial No. 698,774

2 Claims. 1

Locks, particularly padlocks, are known, which comprise a lock casingformed with a throughgoing bore and equipped with a flexible lockingelement, adapted to be passed through the bore. Usually the lockingelement is linked and may for instance consist of a ball chain or a linkchain, but it may also consist of a chain or cable of another shape orof a core of wire or the like, to which annular links are attached. Thesaid locking element has the form of a linked structure, in order tofacilitate the fixing of the same in a definite position by means of amechanism located in the lock casing.

In locks of this kind certain difliculties exist in passing an end ofthe locking element through the said bore or guide in the lock casing,on account of the said locking element being flexible. The presentinvention aims particularly at removing this drawback and relates to anarrangement in locks of the above named kind, which renders it possibleto easily pass an end of a flexible locking element through alongitudinal guide in a lock casing. Even if the invention isparticularly designed for looks of the above it is, as will beunderstood, not re- The invention is applicable also in connection withlocks, which are not equipped with any special mechanism for securingthe said locking element in a definite position.

operating member projecting through the slot, and thereupon moving theoperating member along the slot.

In order to attain the best control possible of the end of the lockingelements during the passage, the operating member may be fastened atsome distance from the end. This distance may ofa suitably be of alength comparable to the thickness of the locking element.

The operating member may eventually consist of a thread-shaped body, thefree end of which for instance is bent into the form of a loop. The saidmember may however also consist of a plate-shaped part, which isconnected to the locking element by means of a connection piece, saidconnection piece being so dimensioned that it can be taken up by theslot in the bore or guide.

A constructional form of a device according to the invention isillustrated schematically by way of example in the accompanying drawing.

Fig. 1 shows schematically and in front view a lock, which is equippedwith an arrangement according to the invention,

Fig. 2 is a section along the line 11-11 in Fig. 1.

l denotes a lock casing, the interior space 2 of which is designed forhousing a lock mechanism, which is not shown in the drawing, since it iswithout interest for the understanding of the invention. The lock casingis formed with two parallel bores, guides, or channels 3 for a flexiblelocking element 4, which in the embodiment of the invention shown in thedrawing consists of a ball chain. Now, the invention mainly consists inthis, that the bores or guides 3 are formed with outwardly opening slots5, which extend over the entire length of the bores 3 and the width ofwhich is less than the thickness of the ball-chain 4. Adjacent one ofits ends the ball-chain is connected to an operating member 6, which inthis embodiment consists of a plate-shaped body, connected to thelocking element 4 by means of an intermediate part 7.

When the arrangement according to the invention is to be used, the lockcasing is caught with one hand (in case it is not immovably fixed),

moving the operating member 6 along the slot.

I claim:

length of the channel, the width of the said slot being less than thethickness of the said flexible locking element, and means operable fromthe outside of the casing and including a part passing through the slotand connected to the said locking element for engaging and disengagingthe locking element with the channel.

2. A threading arrangement for a flexible shackle of a lock casi ng,comp r i sl ing a lgck casing, a fieiiible' ld ckijngzeleinent, a.continuous guide channel in the said casing adapted to receive the saidlocking element and to allow passage of the same, the outer Wall of thesaid guide channel having a longitudinal slot extending along the entirelength of the channel, the width of the said slot being less than thethickness of'the said flexible locking element, and g ne a ns. operablefrom the outside of the casing and including a part passing through theslot and connected to the said locking element at a distance from one ofits ends, which is of a length comparable to the thickness of thelocking element.

TRYGGVE BOB S'IUE.

REFERENCES CITED The jollowing references ane of record in the 1 th spat nt;

UNITED STATES PATENTS Number Name Date 188,664 Parham Mar, 20, 1877507,9518 Waine et a1 Oct. 31, 1893 2,125,052 Ranson July 26, 1938

